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Loomis, C.A.* ; Harris, E.* ; Michaud, J.* ; Wurst, W. ; Hanks, M.* ; Joyner, A.L.*

The mouse Engrailed-1 gene and ventral limb patterning.

Nature 382, 360-363 (1996)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
During vertebrate limb development, positional information must be specified along three distinct axes. Although much progress has been made in our understanding of the molecular interactions involved in anterior-posterior and proximal-distal limb patterning, less is known about dorsal-ventral patterning. The genes Wnt-7a and Lmx-1, which are expressed in dorsal limb ectoderm and mesoderm, respectively, are thought to be important regulators of dorsal limb differentiation. Whether a complementary set of molecules controls ventral limb development has not been clear. Here we report that Engrailed-1, a homeodomain-containing transcription factor expressed in embryonic ventral limb ectoderm, is essential for ventral limb patterning. Loss of Engrailed-1 function in mice results in dorsal transformations of ventral paw structures, and in subtle alterations along the proximal-distal limb axis. Engrailed-1 seems to act in part by repressing dorsal differentiation induced by Wnt-7a, and is essential for proper formation of the apical ectodermal ridge.
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Publication type Article: Journal article
Document type Scientific Article
Language english
Publication Year 1996
HGF-reported in Year 0
ISSN (print) / ISBN 0028-0836
e-ISSN 1476-4687
Journal Nature
Quellenangaben Volume: 382, Issue: 6589, Pages: 360-363 Article Number: , Supplement: ,
Publisher Nature Publishing Group
Publishing Place London
Reviewing status Peer reviewed
PubMed ID 8684466
Erfassungsdatum 1996-12-31